Cage for cylindrical rollers



Aug. 26, 1930. w. L. HUTcHlNsoN CAGE FOR CYLINDRIGAL ROLLERS Filed Sept.25, 1929 INVENTOR M/AL 715/? ..HU TcH//yson/ /v ATTORNEY Patented Aug.26, 1930 UNTED g STT aparaat' OFFICE.

WALTER L. HU'rOHrNsoN, OF HARTFORD, CONNECTICUT, AssrGNon To THE sKAYEF:BALLBEARING cotisant. or HARTFORD, ooNNnOTicnfr, a CORPORATION or CON-Nnorrcnr caen ron oYLrNnnroAL Romans Application filed September 25,1929. Serial No. 395,044.

The primary object of this invention is to;

simple means all the rollers may be released at the same time.

In the drawings accompanying this speciiicati'on one embodiment oi theinvention is illustrated which may be regarded as the` preferred formsince it is shown in accordance with the manner in which the cage hasbeen designed for what I would assume to be its most generalapplication, in which drawings- Figure 1 is an end view partly insection,

y of a cage made in accordance with ymy invention,rin which is assembleda full complement of rollers.

Fig. 2 is a section of Figure 1 at about the line 2-2.

Fig. 3 is a detail in which a portion of the cage is assumed to bespread out to more clearly demonstrate certain features ot theinvention, and y Fig. 4 is an enlarged cross sectional detail.

According to the usual prevailing practice the cage will be made ofsheet metal pressed and bent into shape,- the entire cage being of asingle. uninterrupted piece. The cage is ,especially designedforsupporting, separating and retaining cylindrical rollers such as 5, eachof these rollers being practically cylindrical from end to end andhaving at each f 40' end a slight chamfer 6. Otherwise the end oftheroller is substantially flat.

rIhe cage is shown comprising K' two side ring members 7 joined by acentral substantif ally cylindrical web 8 in whichv are formed openingsyfor receiving the rollers. In the present illustration the rollers areinserted in the pockets 9 from outside the cage byy an inward movement,the width 10 of the mouth of the pocket being shorter than the diameter11 of the roller Vso that the roller cannot pass outwardly when properlyseated.

In forming the pocket openings 9, side flaps 12v and 13 arestruckinwardly and haveV their ends lying between the side member -7 andpreferably with a slight clearance.

v'Ihe flaps 12 and 13 are formed on their roller engaging faces with asubstantiallycylindrical contour conforming"y tothe contour of the rollwhich is to be engaged. This particular cage was designed for use oncylindrical roller bearings, but it will be apparent that other forms-orshapes Vof rollersV may be used in the cage. In any event, the flaps 12and 13 must-conform to at least some portion' or' the perimeter of theroller, and Vpreferably the distance apart 14 of their free ends is lessthan the roller diameter 11. l

To enable an easy assembly and disassembly of the rollers, the rings 7while being -substantially flat between the roller pockets, are bowedoutwardly as at 15 beyond the roller pocket 9 and beyond the positionwhich will be occupied by the end of the roller. This springinesspermits the rollers to be snapped in from the top or outside. Tofacilitate such snapping in, the bows 15 may be compressed either by thelingers of the operator or by some mechanical device. Zhen it is desiredto removethe roller the bows 15 will also be pressed in and the rollerthen readily removed. Or by applying' pressure to all the bows 15 onboth sides at the same time, all the pockets may be freed so that therollers may be readily insertedvor removed.

t will be apparent that changes may be made within the scope of theclaims without departing fromV the spirit of my invention. Although thetype of material which is usedr for the cage has not been especiallymentioned, this may be made offsteel or bronze of suitable consistencyand elasticity.

Having described my invention, I claim and desire to secure by LettersPatent:

1. A-retaining cage for roller-bearings comprising a sheet metal memberhaving a pair of side rings, these being united by a central web, androller pockets being formed in such web, there -beingfside flapsprojecting inwardly from the web, the ends of the flaps being ladaptedto embrace the sides of the rollers and being spaced from the siderings, y

and the side rings opposite the ends of the pockets being bowedoutwardly whereby upon the application of pressure to the bows the mouthof the pocket will open permitting the introduction and withdrawal ofthe roller.

2. A retaining cage for roller bearings comprising a sheet metal memberhaving a pair of side rings, these being united by a central web, androller pockets being formed in such web, there being side flaps struckinwardly from the web, the free ends of the flaps at each pocket beinglocated at distance apart shorter than the diameter of the contemplatedroller and adapted to embrace the sides of the roller, the sides of theiaps being spaced from the side rings, and the side rings opposite theends of' each of the pockets being bowed outwardly whereby upon theapplication of pressure to the bows the mouth of the pocket will openpermitting the introduction and withdrawal of the roller.

3. A retaining cage for roller bearings comprising a sheet metal memberhaving a pair of side rings, these being united by a central web, androller pockets being 'formed in such web, there being side flaps struckinwardly from the web, the width of the pocket opening being less thanthe diameter of the contemplated roller, the free ends of the flaps atcach pocket being located a distance apart shorter than the diameter ofthe contemplated roller and adapted to embrace the sides of the roller,the sides of tlie flaps being spaced from the side rings, and the siderings opposite the ends of each of the pockets being bowed outwardlywhereby upon the application of pressure to the bows the mouth of thepocket will open permitting the introduction and withdrawal of theroller.

Signed at Hartford, Connecticut, this 17th day of September, 1929.

WALTER L. HUTCHINSON.

